Title:
CURRENT CONTROL METHOD, CURRENT CONTROL SYSTEM, BOOM CONTROL SYSTEM, AND VEHICLE
Document Type and Number:
WIPO Patent Application WO/2023/151167
Kind Code:
A1
Abstract:
Provided are a current control method, a current control system, a boom control system, and a vehicle. The current control method comprises: obtaining an actual current value for controlling rotation of a boom; obtaining a target current value; calculating an absolute value of a difference between the actual current value and the target current value; and when the absolute value of the difference is greater than a first preset threshold, adjusting the actual current value to the target current value according to a preset current change rate time curve. A change amplitude of the target current value is determined, and when the change amplitude is excessively large, the change of the current is controlled according to the preset current change rate time curve, so that the boom can be stably started during rotation and can be kept stable after reaching a target speed, thereby avoiding uneven movement of the boom; linear velocity based real-time following of the boom is ensured; the problems of impact and oscillation in a boom starting and stopping process are solved by controlling the current to change according to the preset curve.
Inventors:
LV LIANG (CN)
DING YUAN (CN)
ZHANG TIEQIAO (CN)
DING YUAN (CN)
ZHANG TIEQIAO (CN)
Application Number:
PCT/CN2022/085107
Publication Date:
August 17, 2023
Filing Date:
April 02, 2022
Export Citation:
Assignee:
SANY AUTOMOBILE MFG CO LTD (CN)
International Classes:
E04G21/04; H02P29/40; H02P1/04; H02P3/02
Foreign References:
| CN103676965A | 2014-03-26 | |||
| JP2010178444A | 2010-08-12 | |||
| CN106150101A | 2016-11-23 | |||
| JP2002252992A | 2002-09-06 |
Attorney, Agent or Firm:
YOULINK INTELLECTUAL PROPERTY LAW FIRM (CN)
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